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    <title>Document</title>
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<body>
    <div id="root"></div>
    <script src="./vue3基础源码/vue3.js"></script>
    <script>
        const app = Vue.createApp({
            template:`<div @click="handleClick">{{contData}}------computedValue--->{{computedFn}}</div>`,
            setup(){
                const {ref,computed} = Vue;
                const contData = ref(1);
                function handleClick(){
                    contData.value += 1;
                }
                let num = 0;
                let computedFn = computed({
                    get:() => {
                        return contData.value + 5
                    },
                    set:() => {
                        contData.value = 20;
                        num += 1;
                        console.log("触发" + num + "次");
                    }
                });

                setTimeout(()=>{
                    computedFn.value = 100;
                    setTimeout(()=>{
                        computedFn.value = 50;
                    },2000)
                },2000)

                return {contData,handleClick,computedFn};
            }
        });



        const vm = app.mount("#root");

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